780112 has 10 divisors (see below), whose sum is σ = 1511498. Its totient is φ = 390048.

The previous prime is 780061. The next prime is 780119. The reversal of 780112 is 211087.

It can be written as a sum of positive squares in only one way, i.e., 553536 + 226576 = 744^2 + 476^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 780112.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (780119) by changing a digit.

780112 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24363 + ... + 24394.

2⁷⁸⁰¹¹² is an apocalyptic number.

It is an amenable number.

780112 is a deficient number, since it is larger than the sum of its proper divisors (731386).

780112 is a wasteful number, since it uses less digits than its factorization.

780112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48765 (or 48759 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 19.

The square root of 780112 is about 883.2394918707. The cubic root of 780112 is about 92.0560465048.

Adding to 780112 its reverse (211087), we get a palindrome (991199).

The spelling of 780112 in words is "seven hundred eighty thousand, one hundred twelve".